NASA has released an unprecedented time-lapse video showing the evolution of Kepler’s Supernova Remnant, a cosmic relic of a ...

The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

“Supernova explosions and the elements they hurl into space are the lifeblood of new stars and planets,” said Brian Williams ...

This article (originally published Aug. 13, 2025) has been updated to include new text and illustrations featured in the Jan.

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old. The event was first signaled by a gamma-ray burst and later confirmed ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a supernova ...

James Webb has spotted the most distant supernova ever seen, exploding just 730 million years after the Big Bang, offering ...